Improved paddle-wheel



UNITED STATES PATENT OEEIcE.

MICHL. H. COLLINS AND WM. H. HOLLAND, OF CHELSEA, MASSACHUSETTS.

IMPROVED PADDLE-WHEEL.

Specification forming part of Letters Patent No. 58,603, dated October9, 1866.

To all whom it may concern:

Be it known that we, MICHAEL H. COLLINS and NVILLIAM H. HOLLAND, ofChelsea, in the county oi' Suffolk and State of Massachusetts, have madea new and useful invention having reference to Paddle-Wheels for Steam-Vessels; and we do herebyT declare the same to be fully described in thefollowing specification and represented in the accompanying drawings, otwhich- Figure 1 is a top view, Fig. 2 a side elevation, Fig. 3 alongitudinal section, and Eig. t a transverse section, of a paddle-wheelprovided with our invention.

Thehub A ofthe wheel consists of three circular plates, a b c, fixed atequal distances apart on a tube, d, and kept apart by two collars, e e,arranged between them and on and around such tube.

From each ot' such plates a b c a series of forked arms, h h., extends,the arms of each series radiating' from the axis of the hub, and beingriveted to their plates a, b, or c. Each series of such arms is alsoriveted to one of a series of platc-rings,t' 7c Z, arrangedconcentrically with the hub.

Around each ofthe rings il is another such ring, m, which is arranged ata distance from and in the same plane with the ring which itcircumscribes. Each two rings, i m, m l, are joined by a series ofradial connection-plates, a a, arranged at equal distances apart, thejunction of the plates and rings being by means of rivets. Through eachof the plates a we form an elongated hole, o, to facilitate the escapeof water from the space between the two obtuse angular paddles connectedto such plate a.

We fasten by rivets to each two opposite connection-plates twoobtuse-angular platepaddles, r r, which we arrange between the two ringsm m, in manner as shown in the drawings. Each of such paddles consistsof a rectangular plate of metal bent at its middle to an obtuse angle.The plates ot' each pair have their angles or bends arranged in oppositedirections with respect to each other, in manner as shown in thefigures. Furthermore, each paddle of each pair of paddles is connectedat its bend to the next paddle to it by means of a junction-plate, p,which is riveted to the two paddles, and also to the central ring, K,from which 1t projects radially. A hole, q, is made through each of theplates p, to enable the water to tlow through the plate while the wheelmay be in operation.

Each paddle at its two ends is to lap on its supporting-plates a a, inorder thatit may be riveted to them. So with respect to each oftheconnections p, it is to have flanges by which it may be connected byrivets to the next adjacent paddles and to the ring k.

A paddle-wheel constructed in manner as above described may be made ofwrought plate-iron, and be of great strength and very light, and will beexceedingly eflicient as a motor or propeller.

Vhat we claim as our invention in the said wheel is as follows:

1. The arrangement and combination of its obtuse-angular plates orpaddles r r with the three series of end and niiddle connections, a p u,and the three wheels, composed of the rings t' 7c l and the three seriesof spokes, applied together and to a hub as described.

2. The combination and arrangement of the external rings, m on, with thepaddles r r, the

three series of connections n 11 a, and the three wheels, composed ofthe three rings t' k Z and three series of spokes, applied together andto a hub as described.

M. H. COLLINS. WVM. H. HOLLAND. Witnesses:

R. H. EDDY, F. P. HALE, Jr.

